Package of yarn and the like.



6.1. ULMANN.

PACKAGE 0F YARN AND THE LIKE.

APPLICATION FILED OCT. 28.19M-

Patentd Mar. 5, 1918.

A TTOBNEYS INVENTO/"i WI TA/ESSES om :iosnrn umuxmr, or new ronx, n. Y.

PACKAGE orrnnn AND THE Lrxn.

Specification of Letters IPatent.

Patented Mar. 5, 1918.

Original application filed July 6, 1915, Serial No. 38,097. Divided andthis application filed October 28, 1918. Serial No. 128,202.

To all whom it may concern:

Be it known that I, CARL J. ULMANN, manufacturer, a citizen of theUnited States, and resident of the borough of Manhattan, city, county,and State oiLNew York, have invented a certain new and useful Imrovement in Packages of Yarn and the 11 e, of which the followin is aspecification.

My invention re ates to packages of yarn and the like and has for itsobject to provide an improved package in which the yarn or the like iswound in the form of a ball in a novel manner. My improvement further00111181111918.1388 the provision of a package of yarn or the like inwhich the inner end of the yarn or the like is readily accessible forunwinding purpose and in which the danger of tangling or the like duringunwinding is reduced to a minimum. Other objects of my invention will apcar from the description hereinafter an the features of novelty. will bepointed out in the appended claims. The present application 1s adivision of another a plication filed by me in the United States TatentOflice on July 6, 1915, Serial No. 38097.

An example of my improved arrangement upon which my improved package maybe produced is shown in the accompanying drawings in which Figure 1 isan elevation with the core on which the yarn or the like is wound shownin section; Fig.2 is a vertical section showin the completed ball ofyarn or the like; *ig. 3 is a similar vlew showing said completed'ballin the act of being removed from the device; Fig. 4 1s a plan view ofFig. 1; and Fig. 5 is a horizontal section on the line 5-5 of Fig. 2.

As shown in the drawings the device comprises a preferably cylindricalhead or carrier 10 having an axial recess 11 at one end for theaccommodation of the usual rotary shaft or pindle 12 forming part of aballing or winding machine, any sultable means, such as for instance ascrew 13, being provided for securing the head 10 upon the shaft 12 soas to rotate therewith. At its other end the holder 10 is provided withlongitudinal slots 14 preferably arranged 1n diametrically oppositepairs and extending radially and inwardly into communication with anaxial chamber 15, the said slots lfl and chamber 15 beginning at anintermediate poiut of: the holder 10 and terminating "in the free endface thereof as shown in Fig. 2. A member 16 is slidably mounted withinthe chamber 15 and is preferably provided with peripheral projections 17which extend into the slots 14, the said member 16 being secured to theinner end of a rod or stem 18 which projects slidably through a bushing19 secured in the outer end of a said chamber 15 and at its outer endcarries a clamping plate 20 as shown in Fig. 2. The parts are soarranged and proportioned that in the normal condition of the device themember 16 will be located near the inner end of the chamber 15, whilethe plate 20 will rest against the free end of the holder 10, said plate20 projecting over the ends of the slots 1 1 as also illustrated in Fig.2. The member 16 and plate 20 are maintained in and returned to thinormal position for instance by means of a coil spring 21 whichsurrounds the rod or stem 18 and bears with its opposite endsrespectively against the bushing 19 and the member 16. The arrangementfurther includes fingers 22 which are pivoted at 23 in the slots 14,each of which contains a pair of finger located respectivel near theinner and outer ends thereof an having cam surfaces 24; extendingrespectively beneath the plate 20 and the projections 17 and terminatingat shoulders 25 formed on said fin gers as shown in Fig. 2. Thesefingers 22 normallyoccupy a position at substantially right angles tothe axis of said device or in other words project radiall from the slots14, the pressure of the Pl'OjGCtlOIlS 17 upon the cam surfaces 24: ofthe lower fingers 22 under the influence of the spring 21 serving tomaintain said lower fingers in this position, excepting when a forcesuflicient to overcome the tension of said. spring is exerted toward thefree end of the carrier. The upper fingers 22 are similarly maintainedin their extended positions by means of the plate 20 which exerts apressure upon the cam surfaces 24 thereof through the medium of saidspring 21. The said fingers 22 are further provided with angular orsquared ends 26 which are arranged to en gage the bushing 19 andcooperating portions of the carrier 10 as shown in Fig.2, whereby thepivotal movement of said fingers 22 toward their extended position isarrested or said fingers may engage the inner end walls of the slots forthe same purpose, it being understood that any other arrangementproducin the sameresult may be substituted if desired. The fingers areotherwise so shaped as to permit a pivotal move- 'ment thereof in theopposite direction toward their folded osition.

In usin the device a tubular core 27 ofany suita le material such ascardboard and preferably having a substantially uniform inner diameterthroughout its length is placed over the fingers 22, it being understoodthat the inner diameter of said core relatively to the distance betweenthe outer ends of each pair of diametrically opposite fingers 22 whenthe latter are in their horizontal position, issuch that a frictionalengagement between the inner surface of said core and the ends of saidfingers is secured. In this manner the core 27 is firmly secured uponsaid fingers 22 so as to rotate with. the carrier 10 as the shaft orspindle 12 is rotatably actuated by means of any suitable mechanism. Itwill'be seen that the tubular core 27 is of considerably larger diameterthan the diameter of the carrier 10 and is a true'tube or cylinder ofsubstantially even diameter throughout and without any end flanges orother projections. The yarn or the like 28 which is to be wound upon thecore 27 substantially in the form of a ball may have its one end locatedbeneath the plate 20 so that said end is firmly clamped between saidplate and the free end of the carrier 10 or said end may be otherwisesecured, after which the winding operation is commenced by applyingpower to the shaft or spindle 12., The wlnding operation may be carriedout in the usual manner excepting that the said yarn or the like is alsowound over the opposite ends of the core 27 to form inwardly extendingportions 30 in addition to-the portion 29, the lower one engaging thecarrier 10 and both inwardly overhanging the ends of the core 27 asshown in Fig. 2. After the desired amount of yarn or the like 28 hasbeen wound on the core 27 to roduce a ball of the desired size the winin'g operation is discontinued and a pressure toward the free end of thecarrier 10, sufficient to overcome the tension of the sprin 21, isexerted on the completed ball. T is will cause the fingers 22 to swin onthe pivots 23 as shown in Fig. 3 so that t e core 27 is released fromfrictional engagement therewith, the operation at the same time, throughthe medium of the cam surfaces 24-, acting upon the plate 20 and theprojections 17 of the member 16 and moving said plate 20 away fromthefree end of the carrier 10 and thus releasing the heretofore clamped endof the yarn 28. A continued movement of the completed. ball toward thefree end of the carrier 10 will finally cause the inwardly extendingportion 30 to engage the lower fingers 22 and thereby cause a continuedpivotal or folding movement thereof and a continued axial movement ofthe combined member 16, rod 18 and plate 20 until finally said lowerfingers 22 will lie entirely within the slots 14: as shown by dottedlines in Fig. 3. In this condition of the parts the projections 17 ofthe members 16 are located beneath the shoulders 25 of the lower fingers22 and the ball of yarn or the like is free to be moved outwardly onsaid carrier 10 beyond said lower fingers 22. To completely remove saidball of yarn or the like from the carrier 10 the axial movement of saidball toward the free end of said carrier is continued until the upperfingers 22 are likewise swung or folded inwardly by said inwardlyextending portion 30 so as to He entirely within the outer periphery ofsaid carrier 10 whereupon said ball is free to be completely withdrawnfrom said carrier as will be clearly apparent. As soon as said Portion30 of the ball has passed b lr the fingers 22 the latter will bereturned to their outspread, horizontal position by the pressure of theplate 20 .and the projections 17 upon the cam surfaces 24 of saidfingers, due to the influence of the spring 21. It will be seen that theinitial pivotal movement of the fingers 22 as the ball is being removedimmediately causes a movement of the plate 20 away from the free end ofthe carrier so that the end of the yarn which is clamped beneath saidplate during the winding operation is quickly released and does notinterfere with the removal of the completed ball or cause an unwindingthereof.

\Vith my arrangement the core 27 is firmly held against dislocationthroughout the entire winding operation, as the tension exerted by theyarn and possibly tending to pull the core and partl completed ball fromthe carrier is never sufli cient to overcome the tension of the spring21. The danger of an interruption of the winding operation before thesame has been fully completed or an unintentional dislocation of thecore'and partly completed winding wherebythe Whole ball structure isdestroyed is thus entirely avoided and a loss of yarn owing to the samebecoming entangled is done away with. Furthermore a more firmly andsecurely wound ball is produced with my improved device than hasheretofore been possible while the inner end of said yarn is madereadily accessible whereby an unwindmg of the yarn under the mostfavorable conditions is possible with the danger of tangling or the likereduced to a minimum. VYith my improved device it is further possible toproduce a ball of yarn having an enlarged hollow interior and twoinwardly overhanging end portions forming reduced end openingscommunicating with saidinterior. In addition to this the core is morefirmly held on the carrier than has heretofore been possible and yet atthe same time is removable therefrom in a simple and efficient mannerand with a minimum of effort, so that the possibility ofdestroying ordisarran 'ng the winding during the removal o the ball from the carrieris also obviated.

Various changes in the specific form shown and described may be madewithin the scope of the claims without departing from the spirit of myinvention.

I claim:

1. The combination of a tubular core having substantially the sameinternal diameter throughout its length, and a ball of yarn or the likeinitially wound to overlap both ends of said core to a considerableextent.

2. A package of yarn or the like comprising a ball initially wound toproduce a hollow interior and opposite end openings, the diameters ofsaid end openings being less than that of the hollow interior.

3. A package of yarn or the like comprising a ball initially wound toform a hollow interior and opposite end portions inwardly overhangingsaid hollow interior and forming reduced end openings, and means formaintaining said ball against collapsing.

In testimony whereof I have hereunto set my hand.

CARL JOSEPH ULMANN.

